JP2002104267A - Windowshield device of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make sure to protect a window by preventing a negative pressure from being produced on the backside of a window screen when travelling, and also to make sure to prevent rainwater on the backside of the window screen from being infiltrated. SOLUTION: In this windowshield device of the motorcycle, a front cowling 23 to cover the front of a body from the front is provided, and the window screen 26 is installed in the upper part of the front cowling 23. A meter panel 37 such as a speed meter and the like is disposed on the backside of the window screen 26. An air inlet 25 is opened in the front surface of the front cowling 23, and travelling window is introduced from the air inlet 25, while an air outlet 47 is formed in the front base part of the meter panel 37. The air outlet 47 of the meter panel 37 is opened by turning it toward the backside of the window screen 26, and the air outlet 47 is brought into communication with the air inlet 25. A sliding shutter 54 is provided at the air outlet 47 part of the meter panel 37, and the air outlet 47 can be freely opened and closed by the shutter 54.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a windshield for a motorcycle in which a front portion of a vehicle body is covered by a front cowling.
In particular, the present invention relates to a windshield device for a motorcycle such as a scooter-type vehicle having a windscreen.

[0002]

2. Description of the Related Art In this type of motorcycle, there is a motorcycle in which a transparent windscreen is provided above a front cowling as a front cover for covering a vehicle body from the front, and the windscreen improves wind protection during running. . The wind screen is formed in a streamlined shape in order to eliminate the influence of the traveling wind as much as possible, and various measures are taken on the wind screen in order to improve the wind protection during traveling.

[0003] Some windscreens have larger windscreens and / or have a reversely curved upper end of the windscreen in order to further improve wind protection during running.

However, when the size of the windscreen is increased or the upper end of the screen is warped, a protection area against the traveling wind is widened, but a negative pressure is generated behind the windscreen, and the traveling wind is entrained from the surroundings. Turbulence may occur, and the rider may be uncomfortable as the rider is pulled forward by the negative pressure behind the windscreen.

[0005] For this reason, in a conventional motorcycle, as shown in JP-A-10-23453 and JP-A-11-245868, a wind guide port is opened below a windscreen, and traveling wind flowing from the wind guide port is opened. To the rear of the windscreen.

FIG. 15 shows an example in which a wind guide port 3 is provided above a front cover 2 at the lower end of a windscreen 1 of a motorcycle. As shown in FIG. 16, the wind guide port 3 is opened at the lower end of the wind screen 1, and the traveling wind introduced from the wind guide port 3 is guided to the back side (back side) of the wind screen 1 by the meter panel 4. There is a technology that escapes from the back side of the screen to the rear upper side to reduce the negative pressure on the back side of the wind screen 1. Reference numeral 5 denotes a headlamp assembly.

[0007]

As in a conventional motorcycle, a wind guide port 3 is opened at a lower portion of a wind screen 1 and the wind is guided from the wind guide port 3 to the rear side of the wind screen. Although the negative pressure on the back side of the screen 1 is eliminated, the flow path 6 of the traveling wind introduced from the wind guide port 3 is formed in a continuous streamline shape rising smoothly rearward along the back side of the wind screen 1. Therefore, it is easy for rainwater to enter along with the traveling wind when traveling in rainy weather, and when traveling in a cold season such as winter, the cold wind enters as the vehicle travels, and this cold wind may directly hit the rider's face. was there.

The present invention has been made in consideration of the above-described circumstances, and prevents the generation of negative pressure on the rear side of a wind screen during traveling to improve wind protection, thereby preventing rainwater from entering the rear side of the wind screen. Another object of the present invention is to provide a windshield device for a motorcycle in which the operability is improved and the operability is improved.

Another object of the present invention is to improve the blow-by of the traveling wind blown out from the outlet to reliably prevent negative pressure from being generated behind the windscreen, while removing rainwater from the traveling wind. An object of the present invention is to provide a windshield device for a motorcycle with improved gas-liquid separation efficiency.

Still another object of the present invention is to effectively prevent the occurrence of turbulence behind the windscreen, to prevent the wind from being trapped therein, to suppress rider discomfort, and to improve steering stability. Another object of the present invention is to provide a windshield device for a motorcycle in which the windshield is improved.

Another object of the present invention is to provide a motorcycle which improves wind protection by an openable and closable shutter provided in a wind guide passage for traveling wind from a wind guide port and reliably prevents intrusion of cold wind, rain water, and the like. To provide a windshield device.

Still another object of the present invention is to improve the maintainability of a headlamp or the like, prevent foreign substances such as dust from falling into a wind guide passage, prevent the shutter from being deformed or rattled by running wind, and the like. It is an object of the present invention to provide a motorcycle windshield with improved shutter operability.

[0013]

According to a first aspect of the present invention, there is provided a windshield for a motorcycle, comprising: a front cowling for covering a front portion of a vehicle body from the front; A windscreen is installed above the front cowling, and a windshield for a motorcycle in which a meter panel such as a speedometer is arranged behind the windscreen is used to introduce a traveling wind to the front of the front cowling. An air port is opened, and the air guide port is formed at the front base of the meter panel and communicates with an air outlet opening toward the back side of the wind screen, and a shutter capable of opening and closing the opening is provided at the air outlet. It is a thing.

According to a second aspect of the present invention, there is provided a windshield for a motorcycle according to the present invention, wherein the meter panel is constructed by assembling a front meter panel and a rear meter panel. A sliding guide path is formed between the front and rear meter panels, and the shutter is slid along the sliding guide path so as to be openable and closable. A plurality of comb-shaped or lattice-shaped louvers are provided in the outlet portion formed in the meter panel in parallel with the sliding direction of the shutter, and at least one of the louvers can be slidably contacted with the surface of the shutter. It was done.

Further, in order to solve the above-mentioned problems,
According to a second aspect of the present invention, there is provided a windshield device for a motorcycle, wherein an operation knob for sliding the shutter is provided on the eave portion of the meter panel so as to be vertically slidable. The shutter is slidably opened and closed, and the shutter is slidably held between the back surface of the meter panel and a slide guide member installed opposite to the meter panel as described in claim 5. On the other hand, the slide guide member is formed integrally with a connecting portion of a duct forming a wind guide passage from the wind guide port to the outlet.

According to the present invention, there is provided a windshield device for a motorcycle,
In order to solve the above-described problem, as described in claim 6, a front cowling that covers a front portion of the vehicle body from the front is provided, and a windscreen is installed above the front cowling, and a windscreen is provided behind the windscreen. In a windshield of a motorcycle provided with a meter panel to which meters such as a speedometer are attached, a wind guide port for introducing running wind is opened in front of the front cowling or below a windscreen, while the windscreen and the meter panel are opened. A flow path on the back side of the screen is formed between the air flow path and the air outlet formed at the front base of the meter panel. It was made to communicate.

According to another aspect of the present invention, there is provided a windshield for a motorcycle according to the present invention, wherein a windscreen corresponding to an outlet of the meter panel is positioned at a front side. The windscreen is formed so as to project forward from the extension surface of the cowling, and the windscreen is formed in a smooth streamlined shape from the projecting portion toward the rear upper side. The flow path is constituted by an intake duct provided between the air guide port and the air outlet, and the intake duct is detachably provided.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a windshield device for a motorcycle according to the present invention will be described with reference to the accompanying drawings.

FIGS. 1 and 2 are a side view and a plan view showing an embodiment of a scooter type motorcycle to which a windshield device of the present invention is applied.

The entire scooter type motorcycle is indicated by reference numeral 10 and the entire body frame 11 is covered with a frame cover 12 as a body cover. A front portion of the body frame 11 has a front wheel 14 steered by a steering wheel 13, while a rear wheel 15 is driven by a unit swing type engine 16 constituting a power unit. The unit swing type engine 16 is attached to the lower part of the center of the body frame 11 so as to be swingable in the vertical direction.
5 is rotatably supported.

A driver's seat 17 and a passenger's seat 18 are integrally provided above the unit swing type engine 16 in the vehicle longitudinal direction. The driver's seat 17 and the passenger's seat 18 are formed stepwise so as to be higher toward the rear of the vehicle, and a driver's backrest 19 is formed between the two seats 17, 18. Supports the waist.

On the other hand, the steering wheel 13 and the driver's seat 17
Is curved in a U-shape to form a curved portion 20 to facilitate the driver's getting on and off, and a step board 21 is provided on both sides of the U-shaped curved portion 20. On the vehicle front side of the step board 21, a leg shield 22 is integrally formed as shown in FIGS.

Above the leg shield 22, a front cowling 23 as a front body cover constituting a part of the frame cover 12 is provided. The front cowling 23 is mounted on the vehicle body of the scooter type motorcycle 10 from the front, and is attached so as to cover a front part of the vehicle body.
A headlamp assembly 24 is provided at a lower front portion in the front cowling 23, and a wind guide port 25 is formed above the headlamp assembly 24 so as to open to the front. The traveling wind is guided from the wind guide port 25 to a wind guide channel described later.

A transparent wind screen 26 is provided above the front cover 23. The windscreen 26 forms a windshield, and its outer surface is formed in a streamlined shape to reduce running resistance.

The passenger seat 18 is formed at a position one step higher than the driver seat 17, and a passenger backrest 27 is provided at the rear of the passenger seat 18. Passenger footrests 28 are provided on the left and right sides in the lower front part of the passenger seat 18. Further, a pillion rider handle 30 provided with a passenger grip is provided on the left and right sides of the passenger seat 18 and slightly rearward.

The pillion rider handle 30 is made of a resin such as reinforced plastic or metal, and is formed as a strength member that also serves as reinforcement. Pillion lider handle 30
As shown in FIG. 2 and FIG.
The pillion rider handle 30 is provided with a handle grip in the middle of the pillion rider handle 30. Pillion lider handle 30
Is mounted so as to rise diagonally upward toward the rear. When a passenger (Pillion rider) gets on the passenger seat 18, the passenger supports and guides the leg of the pillion rider, and the load of the pillion rider is reduced. A part is paid by the pillion rider handle 30.

The passenger backrest 27 supports the waist of a pillion rider (passenger), and the sheather 3 stands up from the rear end of the passenger seat 18.
1 is provided on the front surface. The sheather 31 is formed of a metal reinforcing plate constituting a physical strength member. The sheave 31 is made of, for example, aluminum die-cast, and a rear carrier 32 is detachably attached to the back side of the sheave 31.

The front part of the scooter type motorcycle 10 is constructed as shown in FIG.

A windscreen 26 is connected above a front cowling 23 as a front body cover that covers the front of the vehicle from the front, while the windscreen 26 is provided on the vehicle from an extension of the cover surface of the front cowling 23 or an extension surface 35. It has a smooth curved bulging structure that bulges forward. Wind screen 26
Has a structure in which a screen convex portion 36 bulging forward is formed in a central region in a curved shape, and the screen convex portion 36 extends in a streamlined shape in a screen longitudinal direction toward a rear upper direction.

A meter panel 37 is provided behind the wind screen 26 at intervals. Meter panel 3
7 is configured by combining a front meter panel 38 and a rear meter panel 39 as shown in FIGS. Various meters 40 such as a speedometer and a fuel gauge are installed on the meter panel 37.

On the other hand, a wind guide port 25 is opened at the center of the front surface of the front cowling 23 constituting the front cover as shown in FIG. The air guide port 25 is configured by a wind guide duct 43 integrally formed with the front cowling 23. In the air guide duct 43, the air guide port 25 is reinforced by a lattice-like or labyrinth-like guide portion 44, and the guide portion 44 performs a rectifying action of traveling wind.

An intake pipe or duct 45 curved in a U-shape, a U-shape, an arc shape, or an elbow shape is connected to the downstream side of the air guide duct 43. The outflow side of the intake pipe 45 is fitted into a duct-shaped pipe holder 46, and the intake pipe 45 is detachably held. The intake pipe 45 is provided inside the reversing flow path 4 for traveling wind.
8, the direction of the traveling wind introduced from the wind guide port 25 is reversed, and the wind screen 2 is
6 to the rear side flow path 49. Intake pipe 4
The pipe holder 46 for holding 5 is detachably attached to the lower part of the meter panel 37 and fixed.

The pipe holder 46 is an intake pipe 45
It is configured in a duct shape corresponding to. Pipe holder 46
Is formed at the lower part (front base) of the corresponding meter panel 37. Then, the traveling wind passing through the reversing flow path 48 from the outlet 47 is blown to the lower rear part of the wind screen 26.

The traveling wind blown from the outlet 46 of the meter panel 37 to the rear side or the lower part on the back side of the wind screen 26 is formed on the rear side of the screen formed between the wind screen 26 and the front panel 38 of the meter panel 37. It is guided through a channel 49. At this time, a portion of the wind screen 26 corresponding to the outlet 46 of the meter panel 37 bulges forward of the vehicle from an extension 35 of the cover surface of the front cowling 23 to form a screen projection 36. Screen projection 36 bulging forward
Is formed in a streamlined shape from the protruding portion toward the rear and upper part of the wind screen 26, so that the screen back side flow path 49 on the back side of the wind screen 26 has a stable and sufficient flow area. It is formed.

The flow path 49 on the back side of the screen is also used for the meter panel 3.
The lower portion 7 continuously extends in a streamlined shape along the back side of the wind screen 26 from the outlet 47 at the bottom, and is opened upward from the upper end of the eave portion 37a of the meter panel 37. Thus, the traveling wind blown out from the outlet 47 is guided to the rear side of the wind screen 26, and effectively prevents a negative pressure from being generated on the rear side of the wind screen 26 during traveling.

The wind guide port 2 of the front cowling 23
5 is reversed from the air guide duct 43 through an intake pipe or a duct 45 and is passed through a pipe holder 4.
6 and is guided from the lower outlet 47 of the meter panel 37 to the back channel 49 of the wind screen 26. As described above, the entire S-shaped air guide channel 50 is formed in the front cowling 23 from the air guide port 25 to the back channel 49 of the wind screen 26.

By guiding the traveling wind to the S-shaped ventilation channel 50, the traveling wind passing through the ventilation channel 50 is subjected to the action of centrifugal force, and gas-liquid separation is performed effectively and efficiently.
For this reason, even when traveling in rainy weather, rainwater is reliably separated and removed from the traveling wind, and only the traveling wind from which the rainwater has been removed is guided behind the wind screen 26. Can be prevented beforehand.

Further, by guiding the traveling wind from which the rainwater and dust are removed to the back side of the wind screen 26, the back pressure of the wind screen 26 can be effectively prevented from becoming negative. Since the generation of the negative pressure can be prevented, it is possible to effectively prevent the traveling wind from being drawn into the back side of the wind screen 26 from the surroundings, and thus it is possible to prevent the generation of the turbulence on the back side of the wind screen 26.

An intake pipe 45 installed between the wind guide duct 43 of the front cowling 23 and the pipe holder 46 is detachably held. By removing the duct-shaped pipe holder 46 shown in FIG. 8, the intake pipe 45 can be easily removed, and the maintenance of the headlamp assembly 24 can be easily performed. At the time of maintenance of the headlamp, the intake pipe 45 does not become an obstacle, and the maintainability can be improved.

As shown in FIG. 8, a meter panel 37 on which various meters are mounted is a front meter panel 3.
8 and the rear meter panel 39 are combined and assembled by fastening means 53 such as fastening screws (fastening bolts). A sliding guide path 62 for guiding the sliding shutter 54 is formed between the front meter panel 38 and the rear meter panel 39 on the back side of the meter panel 37 and the panel eaves portion 37a.

As shown in FIG. 7, the front lower part of the front meter panel 38 extends forward and downward from the front lower part of the rear meter panel 39 to form a front base. An outlet 47 is formed in the front base. Mounting parts 5 on both sides
5 are formed. The mounting portion 55 is fixed together with the corresponding mounting portion 56 of the rear meter panel 39 by being fastened to a mounting bracket (not shown) in the front of the vehicle body.

The front meter panel 38 and the rear meter panel 39 are curved on the front side in an arc shape or curved shape in the vehicle width direction, and are also curved in the vertical direction perpendicular to the vehicle width direction in an arc shape or curved shape. As a whole, the screen front side is formed in a smooth convex (bulging) curved surface shape.

A blowout louver 58 in the form of a comb or a vertical lattice is formed integrally with a blowout opening 47 formed in the lower front part of the front meter panel 38. The blowout louver 58 reinforces the blowout opening 47. The blowout louvers 58 extend in parallel with the sliding direction of the slide shutter 54, and impart a rectifying effect to the traveling wind.

Of the louvers 58 formed in the air outlet 47, the louvers 58a, 58b, 58 on the center and on both the left and right sides.
As shown in FIG. 9, c slightly protrudes toward the slide type shutter 54 and is formed to be able to abut on the shutter 54. Blow-out louvers 58a, 58 that can abut the sliding shutter 54
b, 58c, the tip is formed in an arc shape;
4 to guide the sliding smoothly, while the leading ends of the blowout louvers 58a to 58c
The guide rail 60 for guiding the sliding of the slide 4 is formed.
Guide rails 60 are blowout louvers 58a, 58b, 58c.
And are integrally formed.

A comb-shaped or lattice-shaped louver 58 (58a, 58b, 58)
By providing c), the deformation and rattling of the shutter 54 due to the wind pressure of the traveling wind can be prevented, the frictional resistance between the shutter 54 and the meter panel 37 is reduced, and the operability of the slide shutter 54 is improved.

A guide rail 61 is also formed on the mounting arm 59 of the duct-like pipe holder 46 in correspondence with the guide rail 60 formed on the outlet 47, and a sliding shutter 54 is provided between the guide rails 60,61. Is formed. Like the guide rail 60 on the front meter panel 38 side, the guide rail 61 is rounded at the tip and formed in an arc shape, so that the contact area with the slide type shutter 54 is reduced and sliding friction is reduced.

Further, the mounting arm 59 of the duct-shaped pipe holder 46 extends upward from both left and right sides of the pipe holder 46, and a mounting portion 59a is provided on a free end side of the mounting arm 59. Mounting part 59a of mounting arm 59
Is fixed to the mounting seat of the front meter panel 38 by fastening means such as fastening bolts (fastening screws). In the middle of the mounting arm 59, an engaging means 63 is provided as shown in FIG. The engaging means 63 is provided integrally with an engaging projection 63a projecting outward from the mounting arm 59.
Can be engaged with an engaging groove or an engaging hole 63b formed in the mounting bracket 64 of the front meter panel 38 with a single touch.

Further, a pair of right and left mounting arms 59 provided on the duct-shaped pipe holder 46 are formed in an L-shaped cross section as shown in FIGS. And a sliding guide path 62 is formed between them. In this sense, the mounting arm 59 constitutes a slide guide member of the slide shutter 54.

The slide guide member has a structure in which the pipe holder 46 is integrally provided, and also serves as a mounting portion for the pipe holder 46. A sliding guide path 62 is formed between the back surface of the front guide panel 38 and the opposing guide arm surface 59b of the mounting arm 59 to guide and hold the sliding shutter 54, while the sliding of the sliding shutter 54 is more effective. The rib-shaped guide rail 6 is provided on the rib-shaped guide arm surface 59b of the mounting arm 59 so as to be smooth and smooth.
1 is protruded. The guide rail 61 extends along the sliding direction of the sliding shutter 54.

On the other hand, guide rails 60 formed on the louvers 58a, 58b, 58c of the front meter panel 38
The guide rail 61 formed on the mounting arm 59 of the duct-like pipe holder 46 extends rearward and upward along the front surface of the meter panel 37 in parallel with the sliding direction of the slide shutter 54, and is shown in FIG. Thus, the sliding shutter 54 is guided. Both guide rails 60, 6
The sliding guide path 62 formed between the first and second metering panels 37 also extends rearward and upward along the front surface of the eave portion 37a of the meter panel 37, and extends so as to communicate between the front meter panel 38 and the rear meter panel 39. You.

As shown in FIGS. 7 and 8, the sliding shutter 54 has an operating portion 65 extending obliquely rearward and upward, and a tip end of the operating portion 65 is engaged with a boss 67 of an operating knob 66. As shown in FIGS. 8 and 11, the operation knob 66 is assembled by fastening means 69 such as fastening screws so that the eaves of the rear meter panel 39 are sandwiched between two knob pieces 68a and 68b with flanges. The operation knob 66 has an operation knob formed on one knob piece 68a, and a boss portion which is inserted into and engaged with the mounting hole of the slide shutter 54 on the other knob piece 68b.

The operation knob 66 is slidable along an elongated hole (operation hole) 70 formed vertically in the center of the eave portion of the rear meter panel 39. The manual operation of the operation knob 66 causes the shutter 54 to move. The air outlet 47 can be opened and closed by being directly operated to slide along the sliding guide path 62. 7 shows a closed state of the sliding shutter 54, and FIG. 12 shows an open state thereof. A complicated sliding operation mechanism such as a link mechanism and an actuator is not required to slide the shutter 54, and the shutter 5
The opening and closing of 4 is smooth and no failure occurs.

On the other hand, the sliding shutter 54 is
As shown in FIG. 7, the shutter 54 is sandwiched between the front meter panel 38 and the rear meter panel 39 and guides the front and back surfaces of the shutter 54 from both sides. Rib-shaped guide rails 71, 7 are provided on the front meter panel 38 and the rear meter panel 39.
The operation unit 65 of the sliding shutter 54 is guided without flapping by disposing the pair 2 opposite to each other. that time,
The front meter panel 38 is provided with a pair of spacer ribs 73 for maintaining a space between the front meter panel 38 and the rear meter panel 39.
Is prevented from swinging left and right in the vehicle width direction. The spacer rib may be formed on the rear meter panel 39 side.

The knob pieces 68a, 68a,
On 68b, the flange surface opposing via the rear meter panel 39 is subjected to unevenness processing. Knob piece 68a, 6
8b extends in the longitudinal direction of the sliding guide groove 62, that is, in the sliding direction of the shutter 54, to reduce the sliding resistance, and the operation knob 66 smoothly slides. It is configured to be. Rear meter panel 3
The rib-shaped guide rails 72 formed on the guide 9 guide the operation knob 66 so as to prevent lateral deflection when sliding.

Thus, the panel surfaces are reinforced by the guide rails 71 and 72 and the spacer ribs 73 formed on the opposing panel surfaces of the front meter panel 38 and the rear meter panel 39, and the mechanical and physical strength is improved.

As shown in FIG. 13, the rotation center Os associated with the sliding of the sliding shutter 54 and the rotation center On associated with the sliding of the operation knob 66 are defined by a sliding guide path 62.
And the radius of curvature of the rear meter panel 39. Therefore, in order to absorb the relative displacement between the operation knob 66 and the sliding shutter 54 due to the difference between the rotation centers Os and On, the shutter 5 is attached to the boss 67 of the operation knob 66.
The operation section 65 of the shutter 54 is freely mounted, and the operation section 65 of the shutter 54 is slidably engaged with the boss 67 of the operation knob 66 in the axial direction.

In this motorcycle windshield, the wind guide port 2
The intake duct (pipe) 45 connected to the air guide duct 43 of FIG. 5 is formed into a curved shape like an elbow and the direction of the traveling wind introduced by the intake duct 45 is reversed. Can be separated and removed by the action of the centrifugal force, and rainwater can be prevented from being blown out from the blowout port 47 to the screen back side flow path 49.

In addition, a sliding shutter 54 is provided on the upstream side of the air outlet 47, and the direction of the traveling wind introduced near the upstream and downstream of the shutter 54 is changed, so that the gas-liquid separation of the traveling wind can be performed more accurately. It can be done properly and reliably.

In the embodiment of the present invention, an example in which the present invention is applied to a scooter type motorcycle is shown. However, the present invention can be applied to a motorcycle other than a scooter type vehicle, such as a three- or four-wheeled vehicle such as an open car. Also applicable to

In one embodiment of the present invention, an example is shown in which a front cowling is formed in a front cowling that covers a front part of a scooter-type motorcycle. However, even if this wind guide port is below a windscreen, Further, it may be formed between the windscreen and the front cowling.

[0061]

In the windshield device for a motorcycle according to the present invention, the traveling wind introduced from the wind guide port is guided to the flow path on the back side of the wind screen, and the generation of negative pressure on the back side of the wind screen is prevented. Prevention and reliable prevention, improving wind protection and preventing riders from feeling uncomfortable while driving, while providing a sliding shutter to prevent rainwater and cold wind from entering the back of the windscreen it can.

Further, the windshield of the motorcycle according to the present invention guides the traveling wind introduced from the wind guide port to the back channel of the wind screen from the outlet to improve the blow-by of the traveling wind blown from the outlet. Therefore, it is possible to effectively prevent the occurrence of turbulence behind the windscreen and prevent the wind from being drawn in, thereby improving the steering stability of the rider.

Further, in the windshield device for a motorcycle according to the present invention, the slide shutter can be directly operated by the operation knob, so that the slide operation mechanism of the shutter is simplified and the structure does not cause any trouble. Can be stably and smoothly performed with the operation knob.

Since the sliding of the sliding shutter is guided by the comb-shaped or lattice-shaped louvers, the contact area with the shutter during the sliding operation of the shutter is reduced. The guide is smoothly guided without any deformation or rattling, and the sliding operability can be improved by reducing the frictional resistance with the meter panel.

Further, since the air guide opening formed below the front cowling and the wind screen and the outlet formed at the front base of the meter panel are communicated with each other through the reverse flow path of the traveling wind, the air is introduced from the air guide opening. The direction of the traveling wind is changed while passing through the inversion flow path, so that gas-liquid separation is actively and efficiently performed, and it is possible to prevent rainwater from entering the rear flow path of the windscreen in advance.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a windshield device for a motorcycle according to the present invention, and is an overall side view of a scooter type motorcycle.

FIG. 2 is a plan view of the scooter type motorcycle shown in FIG.

FIG. 3 is a front view of the scooter type motorcycle shown in FIG. 1;

FIG. 4 is a rear view of the scooter type motorcycle shown in FIG. 1;

FIG. 5 is an enlarged view showing a vehicle front part of the scooter type motorcycle shown in FIG. 1;

FIG. 6 is a perspective view showing a front cowling and a windscreen at the front of the scooter type motorcycle shown in FIG. 1;

FIG. 7 is a sectional view showing a typical embodiment of a windshield device for a motorcycle according to the present invention.

FIG. 8 is an exploded perspective view showing a meter panel installed on the back side of the wind screen shown in FIG. 7;

FIG. 9 is a plan sectional view taken along the line IX-IX of FIG. 7;

FIG. 10 is a plan sectional view taken along line XX of FIG. 7;

FIG. 11 is a plan sectional view taken along the line XI-XI in FIG. 7;

FIG. 12 is an enlarged partial cross-sectional view showing an arrangement relationship between the wind screen and the meter panel shown in FIG. 7;

FIG. 13 is a diagram illustrating a positional relationship between a slide shutter and a rotation center of an operation knob.

FIG. 14 shows a conventional windshield device of a motorcycle.
FIG. 2 is a front view of the motorcycle.

FIG. 15 is a plan sectional view taken along the line XV-XV in FIG. 14;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Scooter type motorcycle 11 Body frame 12 Frame cover (body cover) 13 Handle 14 Front wheel 15 Rear wheel 16 Unit swing type engine 17 Seat for driver 18 Seat for passenger 19 Backrest for driver 20 Curved portion 21 Step board 22 Leg Shield 23 Front cowling (front body cover) 24 Headlamp assembly 25 Ventilation opening 26 Windscreen 27 Passenger backrest 28 Passenger footrest 30 Pillion rider handle 31 See Sheaver 32 Rear carrier 35 Extension line (or extension surface) 36 Screen projection 37 meter panel 38 front meter panel 39 rear meter panel 40 meter 43 air guide duct 44 guide member 45 intake pipe (duct) 4 Pipe holder 47 Blow-out port 48 Reverse flow path 49 Back flow path 50 Wind guide flow path 53 Fastening means 54 Shutter 55, 56 Mounting part 58, 58a, 58b, 58c Blow-out louver 59 Mounting arm (slide guide member) 60, 61 Guide Rail 62 Sliding guide path 63 Engaging means 64 Mounting bracket 65 Operating part 66 Operating knob 67 Boss part 68a, 68b Knob piece 69 Fastening means 70 Elongated hole 71, 72 Guide rail 73 Spacer rib

Claims (8)

[Claims] 1. A motorcycle having a front cowling that covers a front portion of a vehicle body from the front, a windscreen installed above the front cowling, and a meter panel such as a speedometer disposed behind the windscreen. In the windshield device, a wind guide port for introducing traveling wind is opened in front of the front cowling, and the wind guide port is formed in a front base of the meter panel and communicates with an air outlet opening toward the back side of the wind screen. On the other hand, a windshield device for a motorcycle, wherein a shutter capable of opening and closing the opening is provided at the outlet. 2. The meter panel comprises a front meter panel and a rear meter panel assembled to form a sliding guideway between the front and rear meter panels.
The windshield device for a motorcycle according to claim 1, wherein the shutter is slidable along the sliding guide path so that the shutter can be opened and closed. 3. A plurality of comb-shaped or lattice-shaped louvers are provided in an outlet portion formed on the meter panel in parallel with a sliding direction of a shutter, and at least one of the louvers is slidably contacted with a surface of the shutter. The windshield device for a motorcycle according to claim 1, wherein the windshield device is configured to be able to be used. 4. A windshield for a motorcycle according to claim 1, wherein an operation knob for sliding the shutter is provided on the eave portion of the meter panel so as to be vertically slidable, and the shutter is slidably opened and closed by sliding the operation knob. apparatus. 5. A shutter for slidably holding a shutter between a back surface of the meter panel and a slide guide member provided opposite to the meter panel, wherein the slide guide member guides airflow from an air guide port to an air outlet. 2. The windshield device for a motorcycle according to claim 1, wherein the windshield device is formed integrally with a connection portion of a duct constituting a road. 6. A front cowling that covers the front of the vehicle body from the front, a windscreen is installed above the front cowling, and a meter panel on which a meter such as a speedometer is attached is installed behind the windscreen. In the windshield device of a motorcycle, while opening a wind guide port for introducing the traveling wind in front of the front cowling or below the windscreen, a screen back flow path is formed between the windscreen and the meter panel, A windshield of a motorcycle, wherein an air outlet formed at a front base portion of the meter panel faces the rear flow path, and the air guide port and the air outlet communicate with each other through a reverse flow path of traveling wind. apparatus. 7. A portion of the windscreen corresponding to the outlet of the meter panel is projected forward of the vehicle from the extension surface of the front cowling, and the windscreen is formed in a smooth streamline shape rearward and upward from the projected portion. A windshield device for a motorcycle according to claim 6, wherein 8. The motorcycle windshield according to claim 6, wherein the traveling wind reversing flow path is constituted by an intake duct installed between the air guide port and the air outlet, and the intake duct is detachably provided. apparatus.